Hinge

Abstract

The hinge comprises a first hinge piece, a second hinge piece and a pin shaft rotationally connected with the first hinge piece and the second hinge piece, the periphery of the pin shaft is sleeved with a pin sleeve in an interference mode, the pin sleeve is inserted into a second pin shaft sleeve of the second hinge piece in an interference mode, the second pin shaft sleeve is provided with a clamping groove, and the pin sleeve is provided with a clamping strip connected to the clamping groove in a clamped mode. The pin shaft is inserted into the first pin shaft sleeve of the first hinge piece in an interference mode, and knurls corresponding to the first pin shaft sleeve inside and outside are arranged on the periphery of the pin shaft. The knurl is in interference fit with the inner circumference of the first pin shaft sleeve, certain resistance is generated for rotation of the first hinge piece, then rotation of the first hinge piece can be limited, fingers are prevented from being pinched due to rotation of a door and window fixed to the first hinge piece, meanwhile, the rotation angle of the first hinge piece can be positioned through interference abutting limiting arrangement of the knurl, and the hinge piece is prevented from being damaged. The door and window is prevented from being opened and closed along with automatic rotation of the first hinge piece, and the door and window can be opened and closed more conveniently and safely.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware fitting technical field especially is a hinge. BACKGROUND

[0002] Hinge is a kind of connector widely used in door and window installation, to make door and window can rotate on the door frame or window frame open and close. But the existing hinge generally only has simple rotating open and close function, leading to the open and close impact of door and window when opening and closing is larger, more easily pinch the fingers of children and other people.

[0003] And with the rotation use of hinge, the pin shaft on hinge is gradually worn and ground thin with the rotation open and close, and then it can cause the pin shaft to fall off from the hinge connected by rotation, so that the door and window fixed to one of the hinge will fall with the pin shaft, and cause certain security risk in the subsequent use of door and window. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the insufficient of prior art, provide a hinge.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A hinge, including leaf one, leaf two and the pin shaft of the rotation connection leaf one and leaf two, the pin shaft is provided with pin sleeve on the outer periphery, the pin sleeve is inserted into the pin shaft sleeve two of leaf two, the pin shaft sleeve two is provided with clamping groove, the pin sleeve is provided with the clamping strip of the clamping groove, the pin shaft is inserted into the pin shaft sleeve one of leaf one, the outer periphery of pin shaft is provided with the knurling corresponding to the inside and outside of pin shaft sleeve one.

[0007] As preferred, the number of pin shaft sleeve one is two and is arranged corresponding to up and down of pin shaft sleeve two, the number of pin shaft and pin sleeve is two and is inserted and fixed in pin shaft sleeve one and pin shaft sleeve two corresponding to up and down.

[0008] As preferred, one end of pin shaft is provided with abutting plate abutting to pin shaft sleeve one, the other end of pin shaft is provided with clamping column extending into pin shaft sleeve two, the clamping column penetrates and abuts to pin sleeve.

[0009] As preferred, the pin sleeve is provided with limiting ring corresponding to the position of clamping column, the inner periphery size of limiting ring is less than the outer periphery size of clamping column, and the pin sleeve penetrates and abuts to the outside of limiting ring.

[0010] As preferred, the pin sleeve is provided with convex ring and convex ridge matched with pin shaft, and the outer periphery of pin shaft abuts to convex ring and convex ridge.

[0011] As preferred, the pin sleeve is provided with an outwardly extending abutting ring, which abuts between the pin sleeve one and the pin sleeve two.

[0012] As preferred, the second sheet is provided with a reinforcing rib, which is arranged along the length direction of the second sheet.

[0013] As preferred, the first sheet is fixedly installed on the door and window frame, and the second sheet is fixedly installed on the door and window.

[0014] The utility model has the advantages of:

[0015] 1. The first sheet and the second sheet are connected by the interference fit of the pin shaft and the pin sleeve, and the knurl corresponding to the inner and outer surfaces of the pin sleeve one of the first sheet is arranged on the pin shaft, so that the interference fit of the knurl and the inner periphery of the pin sleeve one generates certain resistance to the rotation of the first sheet, thereby limiting the rotation of the first sheet, avoiding the injury of fingers caused by the rotation of the door and window fixed on the first sheet, and positioning the rotation angle of the first sheet by the interference fit of the knurl, avoiding the automatic rotation of the door and window with the first sheet, making the opening and closing of the door and window more convenient and safe.

[0016] 2. The first sheet and the second sheet are connected by the interference fit of the two groups of pin shafts and pin sleeves, the abutting plate abutting the pin sleeve one is arranged on the pin shaft, the abutting plate is used for positioning the installation of the pin shaft, and the clamping column corresponding to the abutting plate and abutting the pin sleeve is arranged on the pin shaft, thereby limiting the abutting plate and the clamping column, reducing the security risks such as falling out of the pin shaft, and improving the reliability and safety of the installation of the hinge. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is an explosion schematic diagram of the utility model;

[0019] Figure 3 It is a local structural schematic diagram of the utility model;

[0020] Figure 4 It is a sectional view schematic diagram of the utility model;

[0021] Figure 5 It is Figure 4 It is an enlarged schematic diagram of the middle A;

[0022] Figure 6 It is a cooperation schematic diagram of the pin shaft and the pin sleeve of the utility model.

[0023] In the figure: sheet one 1, pin shaft sleeve one 11, sheet two 2, reinforcing rib 21, pin shaft sleeve two 22, clamping groove 23, pin shaft 3, clamping column 31, knurl 32, abutting plate 33, pin sleeve 4, clamping strip 41, convex ridge 42, convex ring 43, limiting ring 44, abutting ring 45. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with the drawings and specific embodiments:

[0025] In the description of the present application, the terms "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0026] As Figures 1-6 shown, a hinge includes sheet one 1, sheet two 2 and pin shaft 3 connecting sheet one 1 and sheet two 2, the sheet one 1 is fixedly installed on the door and window frame, the sheet two 2 is fixedly installed on the door and window to be rotated, the sheet two 2 is provided with reinforcing rib 21, the reinforcing rib 21 is arranged along the length direction of the sheet two 2, and the mounting bearing capacity of the sheet two 2 is enhanced by the reinforcing rib 21.

[0027] Further, the door and window are opened and closed by cooperating with the sheet two 2, the pin shaft 3 and the sheet one 1, and the embodiment is not limited to the installation and use of the door and window, but also can be installed on the plate and other components (such as cabinet door) to realize the rotation of the plate and other components.

[0028] The pin shaft 3 is provided with pin sleeve 4, the pin sleeve 4 is inserted into the pin shaft sleeve two 22 of the sheet two 2, the pin shaft sleeve two 22 is provided with clamping groove 23, the pin sleeve 4 is provided with clamping strip 41 clamped in the clamping groove 23, so that the pin sleeve 4 is fixed on the sheet two 2 by the clamping strip 41 clamped in the clamping groove 23, to avoid the relative rotation between the pin sleeve 4 and the sheet two 2 during the rotation of the door and window, and further avoid the relative rotation between the pin sleeve 4 and the sheet two 2 affecting the stability of the pin sleeve 4 inserted into the pin shaft sleeve two 22, so that the pin sleeve 4 can be more reliably fixed on the sheet two 2.

[0029] The pin 3 is interference-fitted into the pin sleeve 11 of the leaf piece 1. The pin sleeve 11 and the pin sleeve 4 are arranged opposite each other on the outer periphery of the pin 3. The outer periphery of the pin 3 is provided with knurling 32 corresponding to the inner and outer sides of the pin sleeve 11. The knurling 32 is distributed corresponding to the inner and outer sides of the pin sleeve 11 and is interference-fitted outward to the pin sleeve 11. That is, through the interference fit between the knurling 32 and the inner periphery of the pin sleeve 11, a certain resistance is generated to the rotation of the leaf piece 1, thereby restricting the rotation of the leaf piece 1 to avoid the rotation of doors and windows fixed on the leaf piece 1 from pinching fingers. In addition, the knurling 32 can also reduce the rotational resistance of the leaf piece 1, making the rotation of the leaf piece 1 smoother.

[0030] Furthermore, the interference fit limit setting of the knurled 32 can be used to position the rotation angle of the blade 1, so as to prevent the door and window from automatically rotating and opening and closing with the blade 1. It can also be understood that the blade 1 can rotate at any angle and maintain this state, making the opening and closing of the door and window more convenient and safer.

[0031] The number of the first pin sleeve 11 is two, and they are arranged vertically and vertically corresponding to the second pin sleeve 22. The two first pin sleeves 11 are arranged vertically and vertically corresponding to the upper and lower ends of the second pin sleeve 22 and are arranged concentrically with the second pin sleeve 22.

[0032] The number of pins 3 and pin sleeves 4 is two, and they are inserted and fixed in pin sleeve 11 and pin sleeve 22 respectively. By setting two sets of pins 3 and pin sleeves 4 to connect page 1 and page 2 respectively, that is, the two sets of pins 3 and pin sleeves 4 cooperate to connect the upper and lower ends of page 1 and page 2 respectively, so as to realize the rotational connection of page 1 and page 2.

[0033] One end of the pin 3 is provided with a stop plate 33 that abuts against the pin sleeve 11 to position the pin 3 during installation. The other end of the pin 3 is provided with a locking post 31 that extends into the pin sleeve 22. The locking post 31 and the stop plate 33 are disposed opposite to each other at both ends of the pin 3. The locking post 31 passes through and abuts against the pin sleeve 4, thereby limiting the position through the abutment of the stop plate 33 and the locking post 31.

[0034] refer to Figure 4 , Figure 5 As shown, the pin sleeve 4 is provided with an outwardly extending abutment ring 45. The abutment ring 45 is abutted between the first pin sleeve 11 and the second pin sleeve 22. The abutment ring 45 cooperates with the abutment plate 33 and the locking post 31 to abut and limit the pin shaft 3 and the pin sleeve 4 to limit the installation of the pin shaft 3 and the pin sleeve 4 on the first pin sleeve 11 and the second pin sleeve 22, so as to reduce the safety hazards such as the pin shaft 3 coming out and falling off, and improve the reliability and safety of the installation and use of this embodiment.

[0035] Meanwhile, the abutting plate 33 is arranged to abut the pin shaft sleeve I 11, so as to avoid forcibly knocking off the pin shaft 3 to open the door and window installed on the sheet two 2, and further through the cooperation of the upper and lower pin shafts 3 and the abutting plate 33, the embodiment has a certain installation anti-theft function.

[0036] In order to improve the stability and reliability of the installation of the embodiment, the pin sleeve 4 is provided with a limiting ring 44 corresponding to the position of the clamping column 31, the inner circumference of the limiting ring 44 is smaller than the outer circumference of the clamping column 31, the pin sleeve 4 penetrates and abuts the outer side of the limiting ring 44, and the clamping column 31 is arranged to pass through the limiting ring 44, so that the clamping column 31 that exceeds the limiting ring 44 cannot be moved out of the pin sleeve 4, thereby improving the stability of the installation of the pin shaft 3, avoiding the wear of the pin shaft 3 due to long-term rotation, causing the installed door and window to fall with the pin shaft 3 and appear safety hazards, that is, improving the safety of the use of the embodiment.

[0037] The pin sleeve 4 is provided with a convex ring 43 and a convex ridge 42 matched with the pin shaft 3, the outer circumference of the pin shaft 3 is in interference abutment with the convex ring 43 and the convex ridge 42, so as to interfere the pin shaft 3 with the convex ring 43 and the convex ridge 42 to install the pin shaft 3 in the pin sleeve 4, and the convex ridge 42 is arranged in the pin sleeve 4, so as to avoid the relative rotation of the pin shaft 3 in the pin sleeve 4, that is, to fix the pin shaft 3 in the pin sleeve 4, so that the installation of the pin shaft 3 and the pin sleeve 4 is more stable, so as to avoid the wear caused by the mutual rotation to affect the stability and reliability of the installation.

[0038] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A hinge comprising a first leaf (1), a second leaf (2) and a pin (3) connecting the first leaf (1) and the second leaf (2) in a rotatable manner, characterized in that: The pin (3) is fitted with a pin sleeve (4) around its outer periphery. The pin sleeve (4) is inserted into the pin sleeve (22) of the second leaf (2). The pin sleeve (22) has a slot (23). The pin sleeve (4) is fitted with a retaining strip (41) that engages with the slot (23). The pin (3) is inserted into the pin sleeve (11) of the first leaf (1). The outer periphery of the pin (3) is provided with knurling (32) that corresponds to the inner and outer knurling of the pin sleeve (11).

2. A hinge as claimed in claim 1, wherein: The number of the first pin sleeve (11) is two and is arranged vertically and vertically corresponding to the second pin sleeve (22). The number of the pin (3) and the pin sleeve (4) is two and is inserted and fixed in the first pin sleeve (11) and the second pin sleeve (22) respectively.

3. A hinge as claimed in claim 1, wherein: One end of the pin (3) is provided with a stop plate (33) that abuts against the first pin sleeve (11), and the other end of the pin (3) is provided with a locking post (31) that extends into the second pin sleeve (22). The locking post (31) passes through and abuts against the pin sleeve (4).

4. A hinge as claimed in claim 3, wherein: The pin sleeve (4) is provided with a limiting ring (44) corresponding to the position of the locking post (31). The inner circumferential dimension of the limiting ring (44) is smaller than the outer circumferential dimension of the locking post (31). The pin sleeve (4) passes through and abuts against the outer side of the limiting ring (44).

5. A hinge as claimed in claim 1, wherein: The pin sleeve (4) is provided with a convex ring (43) and a convex rib (42) that are adapted to the pin shaft (3), and the outer periphery of the pin shaft (3) is press-fitted against the convex ring (43) and the convex rib (42).

6. A hinge as claimed in claim 1, wherein: The pin sleeve (4) is provided with an outwardly extending abutting ring (45), which is abutting between the first pin sleeve (11) and the second pin sleeve (22).

7. A hinge as claimed in claim 1, wherein: The second sheet (2) is provided with a reinforcing rib (21), which is arranged along the length direction of the second sheet (2).

8. A hinge as claimed in claim 1, wherein: The first page (1) is fixedly installed on the door and window frame, and the second page (2) is fixedly installed on the door and window.

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